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"Nguyen, Lien"
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Hanoi's war : an international history of the war for peace in Vietnam
\"While most historians of the Vietnam War focus on the origins of U.S. involvement and the Americanization of the conflict, Lien-Hang T. Nguyen examines the international context in which North Vietnamese leaders pursued the war and American intervention ended. This riveting narrative takes the reader from the marshy swamps of the Mekong Delta to the bomb-saturated Red River Delta, from the corridors of power in Hanoi and Saigon to the Nixon White House, and from the peace negotiations in Paris to high-level meetings in Beijing and Moscow, all to reveal that peace never had a chance in Vietnam.\"--Publisher's description.
Book
Cellular mechanisms and treatments for chemobrain: insight from aging and neurodegenerative diseases
Chemotherapy is a life‐saving treatment for cancer patients, but also causes long‐term cognitive impairment, or “chemobrain”, in survivors. However, several challenges, including imprecise diagnosis criteria, multiple confounding factors, and unclear and heterogeneous molecular mechanisms, impede effective investigation of preventions and treatments for chemobrain. With the rapid increase in the number of cancer survivors, chemobrain is an urgent but unmet clinical need. Here, we leverage the extensive knowledge in various fields of neuroscience to gain insights into the mechanisms for chemobrain. We start by outlining why the post‐mitotic adult brain is particularly vulnerable to chemotherapy. Next, through drawing comparisons with normal aging, Alzheimer's disease, and traumatic brain injury, we identify universal cellular mechanisms that may underlie the cognitive deficits in chemobrain. We further identify existing neurological drugs targeting these cellular mechanisms that can be repurposed as treatments for chemobrain, some of which were already shown to be effective in animal models. Finally, we briefly describe future steps to further advance our understanding of chemobrain and facilitate the development of effective preventions and treatments.
Graphical Abstract
Timely and important review on chemobrain, from the existing consensus to new potential mechanisms based on Alzheimer's disease or traumatic brain injury pathologies, suggesting chemobrain as a persistent neurological disorder.
Journal Article
My grandfather's song
A picture book about a family's connection to their land, their home, and each other. Long ago, Grandfather came to a new land. Fish swam in the water, birds chirped in the sky, monkeys played in the trees. And in this wilderness, with his own two hands, Grandfather built a house. It wasn't easy. But the land gave him what he needed. And it became his home. Decades later, his grandson will have all he needs: a head full of memories, two capable hands, and the heart to appreciate family, nature, and home.
Book
Honey bees (Apis cerana) use animal feces as a tool to defend colonies against group attack by giant hornets (Vespa soror)
Honey bees (genus Apis) are well known for the impressive suite of nest defenses they have evolved to protect their abundant stockpiles of food and the large colonies they sustain. In Asia, honey bees have evolved under tremendous predatory pressure from social wasps in the genus Vespa , the most formidable of which are the giant hornets that attack colonies in groups, kill adult defenders, and prey on brood. We document for the first time an extraordinary collective defense used by Apis cerana against the giant hornet Vespa soror . In response to attack by V . soror , A . cerana workers foraged for and applied spots of animal feces around their nest entrances. Fecal spotting increased after colonies were exposed either to naturally occurring attacks or to chemicals that scout hornets use to target colonies for mass attack. Spotting continued for days after attacks ceased and occurred in response to V . soror , which frequently landed at and chewed on entrances to breach nests, but not Vespa velutina , a smaller hornet that rarely landed at entrances. Moderate to heavy fecal spotting suppressed attempts by V . soror to penetrate nests by lowering the incidence of multiple-hornet attacks and substantially reducing the likelihood of them approaching and chewing on entrances. We argue that A . cerana forages for animal feces because it has properties that repel this deadly predator from nest entrances, providing the first report of tool use by honey bees and the first evidence that they forage for solids that are not derived from plants. Our study describes a remarkable weapon in the already sophisticated portfolio of defenses that honey bees have evolved in response to the predatory threats they face. It also highlights the strong selective pressure honey bees will encounter if giant hornets, recently detected in western North America, become established.
Journal Article
You make the world
\"A loving ode from a father to his young son about the inherent power he holds within himself\"-- Provided by publisher.
BOOK
Sex Differences in Clustering Unhealthy Lifestyles Among Survivors of COVID-19: Latent Class Analysis
The COVID-19 pandemic has underscored the significance of adopting healthy lifestyles to mitigate the risk of severe outcomes and long-term consequences.
This study focuses on assessing the prevalence and clustering of 5 unhealthy lifestyle behaviors among Vietnamese adults after recovering from COVID-19, with a specific emphasis on sex differences.
The cross-sectional data of 5890 survivors of COVID-19 in Vietnam were analyzed from December 2021 to October 2022. To examine the sex differences in 5 unhealthy lifestyle behaviors (smoking, drinking, unhealthy diet, physical inactivity, and sedentary behavior), the percentages were plotted along with their corresponding 95% CI for each behavior. Latent class analysis was used to identify 2 distinct classes of individuals based on the clustering of these behaviors: the \"less unhealthy\" group and the \"more unhealthy\" group. We examined the sociodemographic characteristics associated with each identified class and used logistic regression to investigate the factors related to the \"more unhealthy\" group.
The majority of individuals (male participants: 2432/2447, 99.4% and female participants: 3411/3443, 99.1%) exhibited at least 1 unhealthy behavior, with male participants being more susceptible to multiple unhealthy behaviors. The male-to-female ratio for having a single behavior was 1.003, but it escalated to 25 for individuals displaying all 5 behaviors. Male participants demonstrated a higher prevalence of combining alcohol intake with sedentary behavior (949/2447, 38.8%) or an unhealthy diet (861/2447, 35.2%), whereas female participants tended to exhibit physical inactivity combined with sedentary behavior (1305/3443, 37.9%) or an unhealthy diet (1260/3443, 36.6%). Married male participants had increased odds of falling into the \"more unhealthy\" group compared to their single counterparts (odds ratio [OR] 1.45, 95% CI 1.14-1.85), while female participants exhibited lower odds (OR 0.65, 95% CI 0.51-0.83). Female participants who are underweight showed a higher likelihood of belonging to the \"more unhealthy\" group (OR 1.11, 95% CI 0.89-1.39), but this was not observed among male participants (OR 0.6, 95% CI 0.41-0.89). In both sexes, older age, dependent employment, high education, and obesity were associated with higher odds of being in the \"more unhealthy\" group.
The study identified notable sex differences in unhealthy lifestyle behaviors among survivors of COVID-19. Male survivors are more likely to engage in unhealthy behaviors compared to female survivors. These findings emphasize the importance of tailored public health interventions targeting sex-specific unhealthy behaviors. Specifically, addressing unhealthy habits is crucial for promoting post-COVID-19 health and well-being.
Journal Article
Enhancing the organizational citizenship behavior for the environment: the roles of green training and organizational culture
The environmental concern has become an emerging topic in organization’s human resource management strategy, especially in improving employee’s environmental behavior at work. Thus, the organizational citizenship behavior toward the environment (OCBE) has been currently attracting scholars in management. However, published studies contain research gaps in investigation of the relationships between both green training and organizational culture and OCBE, especially in the hotel industry. Following the social exchange and Ability-Motivation-Opportunity theories, this study aims to examine the effects of two green practices on OCBE and the moderating role of green organizational culture to the effect of green training on OCBE. A quantitative approach with survey strategy is employed and conducted in 4-5 star hotels to test these relationships. The PLS-SEM and K-means Cluster Analysis techniques are applied to analyze data. The findings reveal that green training and organizational culture positively influence OCBE. Also, the effect of green training on OCBE is moderated by green organizational culture. Finally, our study provides limitations of research and further studies, and the implications for management practices concerned with improving employee’s voluntary eco-behavior in the hotel industry.
Journal Article
Factors Associated with Depression among the Elderly Living in Urban Vietnam
The proportion of elderly people in big cities of developing countries, including Vietnam, is rapidly increasing during the age of rampant urbanization. This is being followed by a sustained rise of illnesses, especially mental health issues. The objective of this study was to analyze the association between depression and the factors associated with depression among the elderly. In a cross-sectional study, 299 elderly living in Hanoi, Vietnam, were approached for data collection. Self-reported depression among the elderly was 66.9% (32.8% mild, 30.4% moderate, and 3.7% severe cases). In multivariate analysis, there were significant associations between age, number of physical activities, number of medicine intake, and 3 domains of quality of life (physical health, psychological health, and environmental health) and depression. Age and the number of medicine intake are positively correlated with depression, accounting for 57.94% and 58.93%, respectively. On the contrary, the number of physical activities and the 3 domains of quality life mentioned above are negatively correlated with depression. In the urban setting of a developing country like Vietnam, the elderly have experienced common depression. Recognizing depression among the elderly—which is individual and social—helps us design public health programs. Screening for early depression, joining social programming, and participating in physical activities may improve the mental life of the elderly.
Journal Article
Immunological and Viral Determinants of Dengue Severity in Hospitalized Adults in Ha Noi, Viet Nam
The relationships between the infecting dengue serotype, primary and secondary infection, viremia and dengue severity remain unclear. This cross-sectional study examined these interactions in adult patients hospitalized with dengue in Ha Noi.
158 patients were enrolled between September 16 and November 11, 2008. Quantitative RT-PCR, serology and NS1 detection were used to confirm dengue infection, determine the serotype and plasma viral RNA concentration, and categorize infections as primary or secondary. 130 (82%) were laboratory confirmed. Serology was consistent with primary and secondary infection in 34% and 61%, respectively. The infecting serotype was DENV-1 in 42 (32%), DENV-2 in 39 (30%) and unknown in 49 (38%). Secondary infection was more common in DENV-2 infections (79%) compared to DENV-1 (36%, p<0.001). The proportion that developed dengue haemorrhagic fever (DHF) was 32% for secondary infection compared to 18% for primary infection (p = 0.14), and 26% for DENV-1 compared to 28% for DENV-2. The time until NS1 and plasma viral RNA were undetectable was shorter for DENV-2 compared to DENV-1 (p≤0.001) and plasma viral RNA concentration on day 5 was higher for DENV-1 (p = 0.03). Plasma viral RNA concentration was higher in secondary infection on day 5 of illness (p = 0.046). We didn't find an association between plasma viral RNA concentration and clinical severity.
Dengue is emerging as a major public health problem in Ha Noi. DENV-1 and DENV-2 were the prevalent serotypes with similar numbers and clinical presentation. Secondary infection may be more common amongst DENV-2 than DENV-1 infections because DENV-2 infections resulted in lower plasma viral RNA concentrations and viral RNA concentrations were higher in secondary infection. The drivers of dengue emergence in northern Viet Nam need to be elucidated and public health measures instituted.
Journal Article
Therapeutic Outcomes of Osimertinib in EGFR – Mutant Non-Small Cell Lung Cancer With Brain Metastases: Results From a Retrospective Study at Vietnam National Cancer Hospital
Introduction
This study aimed to evaluate the therapeutic effect of osimertinib and further to compare the results of osimertinib plus brain radiation vs. osimertinib monotherapy in advanced EGFR-mutant non-small cell lung cancer (NSCLC) patients with brain metastases (BMs).
Methods
A retrospective study was conducted involving 62 advanced EGFR-mutant NSCLC patients with BMs who were treated with first-line osimertinib at the Vietnam National Cancer Hospital between April 2019 and December 2023. Patients were categorised in two treatment groups: (1) osimertinib alone (33 patients) and (2) osimertinib combined with locoregional therapy, including stereotactic radiosurgery or whole-brain radiotherapy (29 patients). Endpoints included objective response rate (ORR), central nervous system response rate (CNS-ORR), progression-free survival (PFS), overall survival (OS).
Results
The systemic ORR was 91.9% and the disease-control rate (DCR) was 96.8%. The CNS-ORR was 91.9% and the CNS-DCR was 100%. The median PFS and median OS achieved were 24.5 and 35.2 months, respectively. There was no significant difference in outcomes between patients in either treatment group with respect to CNS-ORR ( P = 1.0), mean best percentage change from baseline in CNS target lesion size (P = .376), median PFS (P = .656), intracranial progression-free survival (iPFS) (P = .706), or OS (P = .734). The occurrence of any-grade adverse events (AEs) did not differ significantly between the two treatment groups (P = .762). However, in the osimertinib plus brain radiation cohort, 3/29 (10.3%) patients experienced radiotherapy-related AEs (2 cases of brain necrosis, 1 case of leukoencephalopathy), which consisted of one case of grade 3 brain radiation necrosis.
Conclusion
Osimertinib shows favorable real-world outcomes in improving PFS, OS, and CNS-ORR in advanced EGFR-mutant NSCLC Vietnamese patients with BMs, with no clear additional benefit from combining with brain radiotherapy.
Journal Article